高频

The law, which equivalent inductance and effective permeability of magnetic core vary with field current under the excitation of high frequency and large power, is discovered, and this will offer an important reference for the reasonable selection and effective use of material in the design of high frequency large power magnetic components.

在对高频功率磁元件测试中的影响因素进行深入研究的基础上，推导出方波、占空比可调矩形波、单极脉冲波及周期变化的任意波激励下磁元件测试与正弦波激励情况的等效，为解决磁元件在高频任意波激励下的在线检测提供了依据。

Under the high frequency vibrating action, the crystal grain formed on the surface of the crystal nucleus eradiation equipment would be broken and peeled off, thereby ejected to zinc molten pool continuously and served as crystal nucleus source of equiaxed grain during solidification.

结果表明，当一种带有冷却结构且进行高频振动的晶核发射器插入锌液内时，锌液在晶核发射器表面迅速形核且长大，在高频振动作用下表面形成的晶粒将被折断剥离，从而连续不断地弹射到锌液中，成为凝固过程中形成大量等轴晶的晶核来源；采用带有水冷和气冷结构的晶核发射器对锌液进行振动激发形核处理后，锌凝固组织中的等轴晶率可分别提高到65%和80%。

Result Maximal tension P(subscript o of soleus tetanic contraction showed no difference between control and 1-week tail-suspension group. P33/P (P33, transient tension of tetanic contraction at the 33 s) was reduced significantly in SUS, and it manifested an increase in fatigability during tetanic contraction in SUS.

结果 在生理溶液灌流下，悬吊1周组小鼠比目鱼肌高频强直收缩的最大张力P(下标 o与其同步对照组相比，仅有降低趋势；但是，高频强直收缩第33秒收缩张力与最大张力之比P33/P

The power coupler is built inside the bulb, connecting the high-frequency generator through feeder line.

高频等离子体放电无极灯由灯泡1、功率耦合器2和高频发生器3三部分组成。

Fifth, Applying the main idea of the improved center weighted median filter to the design of the optimal stack filter based on omnidirectional structural elements constrains, the dissertation raises a kind of improved filter algorithm for de-noising of pulse noise. The theory analysis and the simulation experiment of the image processing shows that this kind of filter can not only remove noise effectively but also keep detail of the image sufficiently.

根据最优全方位结构元约束层叠滤波器中常规中值滤波带来的图像高频细节信息的丧失，引入改进的中心加权中值滤波器，从而提出改进的最优全方位结构元约束层叠滤波新方案，实验和理论证明，它相对于最优全方位结构元约束层叠滤波方案，在滤除噪声的同时更有效保持了图像的高频细节信息。

They are widely used for high frequency dc-to-ac converter, common modechoke of high frequency circuit changer, zero order mutual-inductor and so on.

这种材料已被广泛的应用于高频开关电源、零序互感器、高频逆变器和变压器等电器设备中。

For reducing boundary distortion area, the elevations of grid DEM are viewed as a discrete sequence under a generalized coordinate, so that the boundary problem of two-dimensional discrete wavelet transform is turned into the boundary problem of one-dimensional discrete wavelet transform, which not only greatly reduces the boundary distortion area, improves the precision of reconstructed DEM data near the boundary, but also decreases the number of zeros adding on the boundary for wavelet transform, and boosts the compression ratio. On the basis of analyzing the distribution characteristics of coefficients in low and high frequency bands, a mixed entropy coding plan is applied, and a high efficient quantizator called"self-adaptive hard threshold"is established, which is helpful for improving the precision of the reconstructed DEM data and for enhancing compression ratio.

为了减小小波变换山区格网DEM数据压缩中边界失真区域，将山区格网DEM高程值视为广义坐标下的离散随机序列，把二维离散小波变换中的边界问题转换为一维离散小波变换中的边界问题，不仅大大减少了小波变换边界失真区域，提高了重构DEM数据边界点的精度，而且减少了边界补零个数，提高了压缩比；通过对山区格网DEM数据小波变换低频区和高频区变换系数分布特点的分析，采取了霍夫曼—游程混合熵编码方案，设计了高效、低失真的"自适应硬阈值"量化器，即对低频区变换系数不进行量化，直接进行霍夫曼编码；对高频区变换系数则先用"自适应硬阈值"方法量化处理，再进行游程编码。

Third, In order to check local site effect on this grassplot, we set up the other seismometer(056A) about 20 meters away from the grassplot.

由双站法可以看出，主要的放大频带落於10Hz 左右之高频区，呼应微地动测量所得到的第二峰值也落於此高频区。

An algorithm of HF ground wave radar array calibration for amplitude and phase errors based on sea-echo is proposed in this paper.

摘要针对现有无源校准方法在高频地波雷达中失效的问题，该文提出了一种基于海洋回波的高频地波雷达阵列幅相误差校准算法。

objective : To introduce a technique of High frequency capacitance pachydermatous treatment clamp sutureless closed hemorrhoidectomy as an alternative to the conventional Milligan open hemorrhoidectomy .

目的 介绍一项较 Milligan 开放痔核切除术更优越的高频电容场钳无缝线闭合痔核切除的新方法。方法选有痔核切除指征的 III 度以上环状混合痔病人 80 名，随机分成高频电容场钳无缝线闭合痔切除组（组 I ： 40 例）和 Milligan 开放痔核切除组（组 II ： 40 例）。由同一痔科医师操作。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！